package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * 预编译SQL语句
 */

public class JDBCDemo7 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"欢迎登录","登录");

        try (
                Connection connection = DBUtil.getConnection();
                ) {
            String sql = "select * from userinfo where username = ? and password = ?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,userInfo.getUsername());
            ps.setString(2,userInfo.getPassword());
            ResultSet rs = ps.executeQuery();
            if (rs.next()){
                System.out.println("登录成功");
            }else {
                System.out.println("登录失败");

            }
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }

    }
}
